Skip to content
Find us Hours of Business Email Us Shipping Cookie policy Returns Terms & Conditions Privacy Policy Refunds

Engine Parts for Classic Big Twins

Engine parts and gaskets for Harley-Davidson Classic Big Twins from 1984 and earlier, excluding Sportsters. Check each product's fitment details for the applicable models and years.

Filters

Drag Specialties Point Cover Flat Black 2-Hole - Part #09401244 - Hogparts UK
£14.43 - £14.43
£14.43
£14.43 - £14.43
£14.43

Drag Specialties Spherical Radius Points Cover - Each - Black / Flat for Harley-Davidson Touring, Softail, Sportster & Dyna 1971-2022

In stock

DescriptionSpherical Radius Points Cover Beautiful radiused points cover matches brake caliper inserts and fork tube cap covers Comes complete with...

View full details
£14.43 - £14.43
£14.43
£14.43 - £14.43
£14.43
£19.15 - £19.15
£19.15
£19.15 - £19.15
£19.15

MCS Spacer, Rocker Arm – 1966–1984 Big Twin (4 Used)

Low stock

Description Spacer, rocker arm Fitment 66-84 Big Twin (NU) (4 used) Product Details Brand: MCS Category: MOTOR PARTS > ROCKER ARM PARTS Unit...

View full details
£19.15 - £19.15
£19.15
£19.15 - £19.15
£19.15
Oil Seal Kit Transmission Sprocket, 12050-K - Part #DS174907 - hogparts-uk.myshopify.com
£26.88 - £26.88
£26.88
£26.88 - £26.88
£26.88

James Gasket Complete Transmission Seal Kit #12050-K

In stock

DescriptionComplete Transmission Seal KitDesigned for most 4- or 5-speed Big Twin transmissionsMade in the U.S.A.SpecificationsUnits : KitProduct N...

View full details
£26.88 - £26.88
£26.88
£26.88 - £26.88
£26.88
Tappet Block Gasket, 18634-48-A/B - Part #DS174370 - hogparts-uk.myshopify.com
£12.42 - £12.42
£12.42
£12.42 - £12.42
£12.42

James Gasket Tappet Cover and Pushrod Tube Gasket Kit #18634-48-A/B

In stock

DescriptionTappet Cover GasketsHigh-quality Genuine James gasketsJames Gaskets Rubber-Covered Metal line of gaskets are made from a solid steel she...

View full details
£12.42 - £12.42
£12.42
£12.42 - £12.42
£12.42
Save 1% Save %
£25.26
£25.26 - £25.26
£25.26
£25.01
£25.01 - £25.01
£25.01

James Gaskets Oil Seal Inner Primary Cover – L1984–1986 4-Speed Big Twin; L1984–2025…

Low stock

Description Double lip. Rubber OD. Fits back side inner primary; seals mainshaft support bearing. OEM replacement reference 12052; 12052A. Fitment ...

View full details
£25.26
£25.26 - £25.26
£25.26
£25.01
£25.01 - £25.01
£25.01
Save 1% Save %
£68.58 - £68.58
£68.58
£68.58 - £68.58
£68.58

James Gasket Primary Gasket Kit #34901-85-K

In stock

DescriptionPrimary GasketTop quality gaskets, seals and O-rings meet or exceed OEM specificationsPrimary gasket features silicone beadingMade in th...

View full details
£68.58 - £68.58
£68.58
£68.58 - £68.58
£68.58
£29.43 - £29.43
£29.43
£29.43 - £29.43
£29.43

James Gasket Replacement Rocker Box Cover Gaskets #17358-84-A

In stock

DescriptionReplacement Rocker Box Cover GasketsTop quality Genuine James gasketsMade in the USAThese are the preferred style of gaskets.Specificati...

View full details
£29.43 - £29.43
£29.43
£29.43 - £29.43
£29.43
£50.71 - £50.71
£50.71
£50.71 - £50.71
£50.71

James Gasket Rocker Box Gasket Kit #17038-90

In stock

DescriptionRocker Box Gasket KitMade in the U.S.A.SpecificationsUnits : KitProduct Name : Gasket KitMaterial : RubberType : Rocker BoxRiding Style ...

View full details
£50.71 - £50.71
£50.71
£50.71 - £50.71
£50.71
£241.45 - £241.45
£241.45
£241.45 - £241.45
£241.45

Andrews EV27 Cam - Each, Gear for Harley-Davidson Touring, Softail, Dyna & FXR 1983-2000

In stock

DescriptionEV27 Cam Capable of 6000+ rpm with stock springs and no valve float Bolt-in street cam with fast open and close ramps Uses stock springs...

View full details
£241.45 - £241.45
£241.45
£241.45 - £241.45
£241.45
£9.19 - £9.19
£9.19
£9.19 - £9.19
£9.19

James Gasket Ball/Check Valve #8866

In stock

DescriptionCheck Valve Ball Bearing Oil PumpReplacement oil pump check valve ballSpecificationsUnits : 10 PackProduct Name : BallType : Check Valve...

View full details
£9.19 - £9.19
£9.19
£9.19 - £9.19
£9.19
Drag Specialties Live To Ride Point Cover Gold - Part #09400840 - Hogparts UK
£33.14 - £33.14
£33.14
£33.14 - £33.14
£33.14

Drag Specialties Live to Ride Points Cover - Each, Aluminum - Black / Chrome / Gold for Harley-Davidson Touring, Softail, Dyna & FXR 1979-1999

Low stock

DescriptionLive To Ride Points Cover Die-cast aluminium construction Features detailed eagle with banner and script SpecificationsProduct Name : Co...

View full details
£33.14 - £33.14
£33.14
£33.14 - £33.14
£33.14
£12.16 - £12.16
£12.16
£12.16 - £12.16
£12.16

MCS Spring, Oil Pump Check Valve – 1936–1955 and 1966–1980 Big Twin

Low stock

Description Spring, oil pump check valve Fitment 36-55 and 66-80 Big Twin (NU) Product Details Brand: MCS Category: MOTOR PARTS > OIL PUMP PA...

View full details
£12.16 - £12.16
£12.16
£12.16 - £12.16
£12.16
Top End Gasket Kit, 17033-83-A - Part #DS173251 - hogparts-uk.myshopify.com
£99.24 - £99.24
£99.24
£99.24 - £99.24
£99.24

James Gasket Top End Gasket Kit #17033-83-A

In stock

DescriptionTop End Gasket KitTop-quality gaskets, oil seals and O-rings necessary to rebuild an engineMade in the USAKit Includes: • 0.045" Head Ga...

View full details
£99.24 - £99.24
£99.24
£99.24 - £99.24
£99.24
Engine Gasket Kit, 17029-70 - Part #DS173239 - Hogparts UK
£130.41 - £130.41
£130.41
£130.41 - £130.41
£130.41

James Gasket Complete Gasket Kit #17029-70

In stock

DescriptionComplete Gasket KitTop-quality gaskets, oil seals, and o-rings necessary to rebuild an XL/XG engineMade in the USAKit Includes: • 0.045"...

View full details
£130.41 - £130.41
£130.41
£130.41 - £130.41
£130.41
Cylinder Head Gaskets, 16770-84-B - Part #DS173438 - Hogparts UK
£57.16 - £57.16
£57.16
£57.16 - £57.16
£57.16

James Gasket Replacement Cylinder Head and Compliance Fitting Gaskets #16770-84-B

In stock

DescriptionCylinder Head Gasket/O-RingsAll are top-quality genuine James gaskets and O-ringsMade in the USAThese are optional replacements for simi...

View full details
£57.16 - £57.16
£57.16
£57.16 - £57.16
£57.16
Oil Seal Clutch Release Lever, 37101-84 - Part #DS174366 - hogparts-uk.myshopify.com
£5.77 - £5.77
£5.77
£5.77 - £5.77
£5.77

James Gasket #37101-84

In stock

DescriptionShifter Shaft SealReplacement Shifter Shaft SealsMade in the USASpecificationsMaterial : Rubber Covered MetalUnits : EachType : OilStyle...

View full details
£5.77 - £5.77
£5.77
£5.77 - £5.77
£5.77
Gasket Inspection Cover, 60567-90-DL - Part #78081027 - Hogparts UK
£9.77 - £9.77
£9.77
£9.77 - £9.77
£9.77

James Gasket Inspection Cover Seal Kit - Each, Primary, Metal / Molded Rubber for Harley-Davidson Touring, Softail, Dyna & FXR 1965-2006

In stock

DescriptionInspection Cover Seal Kit Genuine James gaskets and seals Made in the USA SpecificationsRiding Style : StreetFeatures : BeadedMaterial :...

View full details
£9.77 - £9.77
£9.77
£9.77 - £9.77
£9.77
Cylinder Base Gaskets Metal With Bead Front & Rear, 16777-94 - Part #DS174116 - Hogparts UK
£44.91 - £44.91
£44.91
£44.91 - £44.91
£44.91

James Gasket Cylinder Base Gaskets #16777-94

In stock

DescriptionMetal Base GasketsGenuine James Gasket base gaskets features a steel base with silicone beading on both sidesWill not become brittle or ...

View full details
£44.91 - £44.91
£44.91
£44.91 - £44.91
£44.91
£54.87 - £54.87
£54.87
£55.71
£55.71 - £55.71
£55.71

Drag Specialties Motor Mount - Each, Urethane - Black for Harley-Davidson Touring, FXR & Buell 1982-2008

In stock

DescriptionMotor Mount Urethane motor mount specially designed to out-last and out-dampen the OEM part Provide superior damping and durability comp...

View full details
£54.87 - £54.87
£54.87
£55.71
£55.71 - £55.71
£55.71
Sold out
£8.94
£8.94 - £8.94
£8.94
£8.26
£8.26 - £8.26
£8.26

Cometic Cylinder Base Gasket Set. Fibre 3-5/8" Big Bore – 1963–1965 Panhead; 1966–1984 Shovelhead.…

Out of stock

Description Front & rear gasket for one engine. .020" fiber; a premium hi-temperature; hi-density creep resistant material that requires no re-...

View full details
£8.94
£8.94 - £8.94
£8.94
£8.26
£8.26 - £8.26
£8.26
Sold out
Save 1% Save %
£14.88
£14.88 - £14.88
£14.88
£14.74
£14.74 - £14.74
£14.74

James Gaskets Gasket Taillight to Fender – 1973–1999 H-D

Low stock

Description .055" paper. OEM replacement reference 68123-73. Fitment 73-99 H-D (NU) Product Details Brand: James Gaskets Category: ELECTRICAL &g...

View full details
£14.88
£14.88 - £14.88
£14.88
£14.74
£14.74 - £14.74
£14.74
Save 1% Save %
£41.10 - £41.10
£41.10
£41.79
£41.79 - £41.79
£41.79

James Gaskets Evo Cylinder Head & Base Gasket Kit – 1984–1999 Big Twin; 1988–2022 XL…

Low stock

Description Standard 3-1/2" bore. Kit to service one engine. With .045" head (.046 starting thickness and .042" final crush) and .030" base gaskets...

View full details
£41.10 - £41.10
£41.10
£41.79
£41.79 - £41.79
£41.79
Save 4% Save %
£15.76
£15.76 - £15.76
£15.76
£15.07
£15.07 - £15.07
£15.07

MCS Locked Thrust Washer, Camshaft – 1958–1990 Big Twin (OEM Cases)…

Low stock

Description With ''ears''. Fits against the crankcase; behind camshaft. This is the locked ''early'' 58-90 model for which a separate thrust washer...

View full details
£15.76
£15.76 - £15.76
£15.76
£15.07
£15.07 - £15.07
£15.07
Save 4% Save %
Save 4% Save %
£23.01
£23.01 - £23.01
£23.01
£22.00
£22.00 - £22.00
£22.00

Cometic Cylinder Head Gasket Set. 3-5/8" Copper – 1963–1984 Big Twin

Low stock

Description .032" thick copper. Pair for front & rear cylinder head. Fitment 63-84 Big Twin (NU) Product Details Brand: Cometic Category: GA...

View full details
£23.01
£23.01 - £23.01
£23.01
£22.00
£22.00 - £22.00
£22.00
Save 4% Save %

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare